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Finding the Fourth Proportional to 16,615.90, 24,915.30 and 4,927.60

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Solution

The fourth proportional to 16,615.90, 24,915.30 and 4,927.60 is: 7,388.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.90 : 24,915.30 = 4,927.60 : x
  2. Step 2: Convert to fraction form
    16,615.90/24,915.30 = 4,927.60/x
  3. Step 3: Cross multiply
    16,615.90x = 24,915.30 × 4,927.60
  4. Step 4: Simplify right side
    16,615.90x = 122,772,632.28
  5. Step 5: Solve for x
    x = 122,772,632.28/16,615.90
  6. Step 6: Final answer
    x = 7,388.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.